If you are needing to get down deep and in a hurry, you might try googling the "Chuck 'n Duck" method/cast ... Used it in Michigan when salmon and steelhead fishing ... It's definitely not pretty, but it is effective in getting a fly quickly down into a deep hole ... It's been a while since I have been to there website, but the guys who run the Baldwin Bait and Tackle shop up in Baldwin, MI used to have a pretty decent article of the rigging and casting of the "chuck n' duck" ...
I was never a big fan of the approach myself ... mostly because I found that much weight flying by my ear uncomfortable ... but it was effective ...